NASA study traces decade of ammonia air pollution in Africa

A new NASA-led study is the first to document changing atmospheric ammonia (NH3) concentrations in Africa over an extended period. Ammonia is an air pollutant which can lead to heart and lung related illness. When present ...

A mission to explore the methane lakes on Titan

Titan has become a center of increasing attention as of late. Discoveries from Cassini have only increased interest in the solar system's second-largest moon. Liquid on its surface has already prompted one upcoming mission—the ...

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